Pan greasing machine



June 9, 1931.

J. cHvoJKA PAN GREASING MACHINE Filed May 5l, 1950 4 Sheets-Sheer. l

INVINTOZ @556% .-/We] June 1 93 I.

J. CHVOJKA PAN GREASING MACHINE v Filed May 3l, 1930 4 Sheets-Sheet 2 fNHWToJz 1f-M UWM `-une 9, 1931. J. cHvoJKA `PAN GREASING MACHINE Filed May 5l, A19250 4 Sheets-Sheet 5 June 9, 1931- J. cHvoJKA 1,809,581`

PAN GREASING MACHINE Filed May 51, 195o 4 sheets-sheen 4 www Patented June 9, 1931 .PATENT o1-FICE JOSEPH CHVOJ'KA, 0F PHILADELPHIA, PENNSYLVANIA PAN ennesima MAcHrNE f Application inea May 31, 1930. seran 110.458,319.

My invention relates to new and useful improvements in a pan greasing machine. and has for one of its objects to generally improve the construction of devices of this kind which 4. will be simple and effective in `operation and increase the amount of work of the operator.

Another object ofthe inventionis to provide a greasing element of unique construction embodying features new to this class of machines. L

A further object of the invention is to provide'an arrangement whereby grease is automatically fed to the greasing element at a and then specifically designated by the claims.

' In order that those skilled in the art to which this invention appertains may under-A stand how to make and use the same, I will describe its construction in detail, referring by numerals to the accompanying drawings forming a part of this application, in whichz- Fig. 1 is a front elevation of a-pan Vgreasing machine constructedy in accordance with my invention, some-partsbeing broken away and shown insection to illustrate details of `construction and the upper end of the piston rod and parts co-operating therewith.

Fig. 2 is an endy view of the machine. Fig. 3 Lis 'a top plan view of the machine with the greasereservoir removed.

. Fig. 4 is an enlarged vertical sectional view l of one of the greasing elements. .'Fig. 5 isa .fragmentary plan view of the grease kreservoir with the piston removed and illustrating one method .of regulating Vthe grease feed.

' Fig. 6 is a detail sectional view of the lever and pawl for actuating the gear which operates'the pistonwinthe grease reservoir.

`Fig. 7 is a face view of oney of the corrugated washers used in theV greasing element.

Fig. 8 is an edge view thereof.

Incarrying out my invention as herein embodied, l10k represents a suitable frame ork support including any necessary number of legs 11 and top 12. In this frame or support is mounted an elevating platform 13; on which a p an to be greased is placed and this platform is carried by the elevating plunger 14 having teeth or a rack 15 thereon with which meshes the teeth 16 on the segment yhead 17 of the treddle 18, the llatter being pivoted adjacent its inner or head-end as at 19v while the outer end has a foot piece 20 to be engaged by the foot of the operator.

Intermediate the ends of the treddle 18 is pivoted one end of a connecting rod21, the other end of which is pivoted to one end of a lever 22 fulcrumed intermediate its ends as at 23 and `having pivotedtoits other end one endy of a pitman 24, while the other end of said pitman ispivoted to the free end Vof the ratchet' lever 25, the opposite end of said ratchet lever being journalled on the axis of the lgear 26..

The gear as `well as the ratchet lever are mounted on an axle 27 supported in a bracket 28 projecting from the post 29 and said post carries a ratchet 30y cooperating with the gear 26 to prevent accidental retrograde movement thereof. V

vIn order to actuate the gear26 by the treddle .18 and through the medium of the connecting parts, a spring housing 31 is mounted in a hole in the yratchetlever 25 and vthrough this passes the stem 32 of the pawl 33 with a spring 34 surrounding said stem andengaging the closed'end ofthe spring housing as the stationary element and engaging the pawl 33 as the movable element to force the latter outward into engagement withV the gear 26 to cause the pawl to successively enter. the holes 35 in said gear, it being understood that the ends o f the pawl is beveled as shown in Fig. 6 so that proper movement of the ratchet lever 25 will cause the pawll to withdraw from one holek and enter another.

The gear wheel 26 meshes with a rack 36 on the'piston rod 37 for actuating th-e llatter to elevate or depress the piston 38 slidably {itted in the grease reservoir 39 for maintaining a pressure on the grease within said reservoir to assist in forcing said grease from the reservoir through the feed conduits or tubes 39a to the greasing elements 40. The supply of grease passing through the conduits or tubes may be regulated by a damper plate 41 having apertures 42 for registration with the inlet ends of the conduits or tubes and said damper plate is movable across the bottom of the grease reservoir by suitable means such as a screw 43 rotatably journalled in a wall of the reservoir and having threaded engagement with a lug 44 on the damper plate. Grease is prevented from passing out about the screw by means of packings or a stuffing box 45.

The greasewithin Vthe reservoir may be maintained at the proper constancy or fluidity by a heating element 46, preferably an electric heating element.

Above the top 12 of the frame or support and spaced a suitable distance therefrom is a shelf 47 beneath which are'secured a number of flanged nipples 48, each preferably have ing a closed lower end as at 49 with one or more openings 50 in the side wall adjacent said lower closed end and into each of these nipples projects one of the feed conduits 39. Rotatably and slidably mounted upon each nipple is a collar 51 normally forced outward or downward relative to the nipple by a spring 52, one end of which engages the collar and the other end the flange of the nipple and connected with this collar is a spider 53, to support the pliable and slightly compressible grease applicators 54, some of which. may be in the shape of rings to fit about the spider and others in the form of discs to cover the bottom of the spider. It might be well to state at this time that the grease applicators are made of some suitable textile fabric, such as felt or canvas and in between some of the applicators are located corrugated spacer washers 55 to permit the grease to fiow freely toward the edges of the applicators and to assist the impregnation or saturation of said applicators with grease. I have found in actual practice, that it is advisable to forma complete applicator of a number of the rings and discs with the corrugated washers be tween some of them as a complete unit, fastening allof said parts together so that when slipped over the spider they will fit the latter sufficiently tight to prevent accidental displacement and so that they will rotate with the spider. l

Rotary motion is transmitted to the grease applicators from a source of power and motion through a pulle Vor sprocket wheel 56 fixed to a shaft 57 an from this shaft motion is transmitted to a similar shaft 58 ythlnugh a belt 59 running over pulleys on both of the shafts, said shafts being mounted at opposite ends ofthe machine. On the upper ends of the shafts are mounted eccentric cams 60 which alternately engage lugs 61 at opposite ends of the reach bar 62, the latter having its ends slidably mounted in bearings 63 and provided intermediate its ends with transverse slots 64 registering with pins 65 on the collars of the contiguous greasing element-s and to each of the collars of the row of greasing elements contiguous the reach bar is pivoted one end of a Z-shaped link 66, the other end being' pivoted to the collar of an adjacent greasing element in the next row of said elements. At the same point is pivoted one end of another link 67 while the other end of the latter is pivoted to the collar of an adjacent greasing element in the next row, but the last mentioned link isreversed to the rst mentioned one. As will be readily noted by reference to Fig. 3, the arrangement of the links are such that the ends are pivoted to the collars of adjacent greasing elements on opposite sides of an imaginary line ruiming through the centers of the shafts of said adjacent greasing elements and therefore the direction of rotation of adjacent greasing elements in the transverse rows will be opposite to each other.

In operation, when the device is Working all of the greasing elements will be rotating andby placing a pan having a plurality of cups and often called a mufhn pan on the elevating platform and then pressing upon the treddle 18, said pan will be moved toward the greasing elements until the cups of said pan register with said greasing elements, the latter being able to recede because of the springs 52 if'the elevation is too great or if for any reason the cups cannot pass over the applicators of Vthe greasing elements `and a small amount of this recession is necessary in order that the openings 50 may he uncovered to permit grease to enter the spiders and finally reachfthe applicators. The rotation of the applicators will distribute the grease well over the surfaces of the cups of the pan.

Simultaneously with this movement, motion will be transmitted to the gear 26 so as to force the piston 88 downwardto maintain the desired pressure on the grease in the reservoir or to expel grease from said reservoir for conveyance tothe greasing elements and as soon as the pressure is relieved from the treddlev 18 the elevating platform will descend and return the other parts associa'ted` with said treddle to their' normal positions shown in Figq2, at which time the pawl 33: will have been withdrawn from one hole in the gear 26 and moved to a position for registration with the next succeeding hole ready for the next manual operation.

0f course I do not-wish to be limited to the exact details of construction'as herein shown, as these may be varied within the limits of the appended claims without dee parting from the spirit of my invention l greasing elements.

Having thus fully described my invention, what I claim as new and useful is 1. A pan greasing machine including a plurality of rotatable greasing elements, means to rotate said elements, an elevating plat-form beneath said elements to hold a pan and move the same into operative relation with the greasing elements, manually operated means for actuating the elevating platform, a grease reservoir, conduits connecting said reservoir with several greasing elements, a piston for applying pressure to the grease in the reservoir, and means connected with the manually operated means for transmitting movement to the piston.

2. The structure set forth in claim 1 in combination with a damper plate located within the reservoir for regulating the outlet of grease therefrom, and means connected with said damper plate and passing through a wall of the reservoir to be operated from the exterior of said reservoir to vary the position of the damper plate.

3. A pan greasing machine comprising a supporting frame, a shelf carried by said frame and spaced above the top of the latter, greasing elements supported by the shelf and each comprising a Hanged nipple closed at its lower end and having an outlet in the side wall adjacent said lower end,` a collar revolubly and slidably mounted on said nipple, a spring normally forcing said collar downward, a spider carried by the collar, a portion of which normally covers the outlet and grease applicators carried by the spider, a reservoir, conduits leading from the reservoir to the several greasing elements and entering the nipples thereof, means for rotating the grease applicators through the medium of the spiders land collars, an elevating platform and manually operated mechanism for moving said platform toward the greasing elements whereby a pan on said platform will be moved into engagement with the washers located between some of the grease applying means to permit free access of the grease to the applying means, means to support a pan, and manually operatedmeans to move the pan supporting means toward the greasing elements, and means to rotate the collars, spiders and greasing applying means of the greasing elements.

6. The structure set forth in claim 5 wherein the means for rotating the movable parts of the greasing elements consists of a reach bar having its ends slidably mounted in bearings, lugs projecting from the reach bar, revolving cams located at opposite ends of the reach bar and revolving in the same direction and each coacting with its respective lug to thereby reciprocate said reach bar, means to connect said reach bar with collars of contiguous greasing elementsy and links connecting the collars of the greasing elements contiguous said reach bar with the collars of other greasing elements whereby the movable parts of all of said greasing elements will be rotated in unison.

In testimony whereof, I have hereunto afhxed my signature.

JOSEPHk CHVOJKA.

4. The structure set forth in claim `3 in c combination with a piston in the reservoir and motion transmitting mechanism coni nected with the manually operated mechanism to move the piston downward step by step as said manually operated mechanism is actuated. Y

5. In a pan greasing machine, a frame,'a

l shelf supported by and spaced from the top of said frame, greasing elements depending from the under side of said shelf and each consisting of a nipple fastened to the shelf and having an outlet adjacent its lower end, a collar` slidably and rotatably mounted on the nipple, a spring normally forcing said collar downward, a spider carried by the collar and surrounding the lower end of the nipple and normally closing the outlet thereof, pliable absorbent grease applying means f" mounted on the spider, and corrugated spacer 

